Tools/Profit Calculator

Resale Profit Calculator

Real profit after platform fees, shipping, and all costs — across eBay, Poshmark, Mercari, Depop, StockX, and 8 more. No signup needed.

Your numbers
What you pay to ship — not what the buyer pays.
Results
$0.00
Net profit
Platform fee
Total costs
ROI
Profit margin
Break-even price
Track this in stokd

Auto fee tracking across all platforms. Free to start.

How it works
Three inputs. Real profit instantly.
01
Enter your costs
What you paid for the item plus shipping and any other costs tied to the flip.
02
Pick your platform
Select from eBay, Poshmark, Mercari, Depop, StockX, GOAT, and 6 more — or enter a custom fee.
03
See real profit and ROI
Net profit after every deduction, ROI percentage, and the minimum price you need to break even.
FAQ
Common questions
Why is my real profit different from the sale price?

The platform subtracts fees from your payout, and you also need to subtract what you paid for the item, shipping, and packaging. This calculator does all of that in one step so you see the actual number that ends up in your pocket.

What does eBay actually charge?

eBay charges a final value fee — typically 12.95% for most categories. Some categories like books charge 14.95% and musical instruments are lower at 6.35%. The fee is calculated on the total amount the buyer pays including any shipping they pay.

How does Poshmark's fee structure work?

Poshmark charges a flat $2.95 for sales under $15, and 20% for anything $15 and over. At 20%, it's one of the highest fee platforms — which is why many resellers only list higher-margin items there.

What is ROI and why does it matter?

ROI (Return on Investment) shows your profit as a percentage of what you spent. A $10 profit on a $25 investment is 40% ROI. It's the best way to compare flips — a small profit on a cheap item can outperform a large profit on an expensive one.

How do I track profit automatically across platforms?

stokd calculates platform fees, profit, and ROI for every item automatically. It also shows which sourcing spots have the best ROI so you know where to focus your buying trips. Free for your first 25 items.

More free tools
eBay
eBay Fee Calculator
Poshmark
Poshmark Fee Calculator
ROI
ROI Calculator
Bulk Lots
Lot Splitter